var some_obj= {
    name:'Nanji',
    say :function (who) {
        return "hey!  " + who + " and I'm a " + this.name;
    }};
var my_obj ={ name : 'Scripting guru'};
console.log(some_obj.say.call(my_obj , "Dude"));
console.log(some_obj.say.call(my_obj , ["Dude"]));

